{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "148483",
    "entityType": "User",
    "nonce": "0xc6283ab2c24a8f593543475819404be6586cce3600e64527cafe883516cb5ad7",
    "signature": "0xfc3f999cd7cb2d8f36b5af4a843fe584c09f5c231795f4db6f6970aa52c05e302b0f3334276c89ecc8ac19a2ec0c7fe1f7cb580dd1e353419b1140efa4b2037c1c",
    "signer": "0x569a23a5D506E4404139fB7510738Ee5b80F5624",
    "userId": "280440301"
  }
}